Finding the Fourth Proportional to 42,771.35, 64,167.97 and 17,803.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,771.35 : 64,167.97 = 17,803.10 : x
2. Step 2: Convert to fraction form
   42,771.35/64,167.97 = 17,803.10/x
3. Step 3: Cross multiply
   42,771.35x = 64,167.97 × 17,803.10
4. Step 4: Simplify right side
   42,771.35x = 1,142,388,786.71
5. Step 5: Solve for x
   x = 1,142,388,786.71/42,771.35
6. Step 6: Final answer
   x = 26,709.21